Change-Id: I078ec1e89afaa13a072a67b0010d2903b12f446d
Signed-off-by: Rex Zhu <rex....@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c | 85 +++++++++++++++++++++++
1 file changed, 85 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
index f1437fa..f9676a0 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c
@@ -205,6 +205,7 @@ uint8_t tonga_get_voltage_id(pp_atomctrl_voltage_table
*voltage_table,
return i - 1;
}
+
/**
* @brief PhwTonga_GetVoltageOrder
* Returns index of requested voltage record in lookup(table)
@@ -4330,6 +4331,82 @@ int tonga_program_voting_clients(struct pp_hwmgr *hwmgr)
}
+
+static void tonga_set_dpm_event_sources(struct pp_hwmgr *hwmgr, uint32_t
sources)
+{
+ bool protection;
+ enum DPM_EVENT_SRC src;
+
+ switch (sources) {
+ default:
+ printk(KERN_ERR "Unknown throttling event sources.");
+ /* fall through */
+ case 0:
+ protection = false;
+ /* src is unused */
+ break;
+ case (1 << PHM_AutoThrottleSource_Thermal):
+ protection = true;
+ src = DPM_EVENT_SRC_DIGITAL;
+ break;
+ case (1 << PHM_AutoThrottleSource_External):
+ protection = true;
+ src = DPM_EVENT_SRC_EXTERNAL;
+ break;
+ case (1 << PHM_AutoThrottleSource_External) |
+ (1 << PHM_AutoThrottleSource_Thermal):
+ protection = true;
+ src = DPM_EVENT_SRC_DIGITAL_OR_EXTERNAL;
+ break;
+ }
+ /* Order matters - don't enable thermal protection for the wrong
source. */
+ if (protection) {
+ PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
CG_THERMAL_CTRL,
+ DPM_EVENT_SRC, src);
+ PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
GENERAL_PWRMGT,
+ THERMAL_PROTECTION_DIS,
+
!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
+
PHM_PlatformCaps_ThermalController));
+ } else
+ PHM_WRITE_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
GENERAL_PWRMGT,
+ THERMAL_PROTECTION_DIS, 1);
+}
+
+static int tonga_enable_auto_throttle_source(struct pp_hwmgr *hwmgr,
+ PHM_AutoThrottleSource source)
+{
+ struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
+
+ if (!(data->active_auto_throttle_sources & (1 << source))) {
+ data->active_auto_throttle_sources |= 1 << source;
+ tonga_set_dpm_event_sources(hwmgr,
data->active_auto_throttle_sources);
+ }
+ return 0;
+}
+
+static int tonga_enable_thermal_auto_throttle(struct pp_hwmgr *hwmgr)
+{
+ return tonga_enable_auto_throttle_source(hwmgr,
PHM_AutoThrottleSource_Thermal);
+}
+
+static int tonga_disable_auto_throttle_source(struct pp_hwmgr *hwmgr,
+ PHM_AutoThrottleSource source)
+{
+ struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
+
+ if (data->active_auto_throttle_sources & (1 << source)) {
+ data->active_auto_throttle_sources &= ~(1 << source);
+ tonga_set_dpm_event_sources(hwmgr,
data->active_auto_throttle_sources);
+ }
+ return 0;
+}
+
+static int tonga_disable_thermal_auto_throttle(struct pp_hwmgr *hwmgr)
+{
+ return tonga_disable_auto_throttle_source(hwmgr,
PHM_AutoThrottleSource_Thermal);
+}
+
+
int tonga_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
{
int tmp_result, result = 0;
@@ -4412,6 +4489,10 @@ int tonga_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
PP_ASSERT_WITH_CODE((tmp_result == 0),
"Failed to power control set level!", result =
tmp_result);
+ tmp_result = tonga_enable_thermal_auto_throttle(hwmgr);
+ PP_ASSERT_WITH_CODE((0 == tmp_result),
+ "Failed to enable thermal auto throttle!", result =
tmp_result);
+
return result;
}
@@ -4423,6 +4504,10 @@ int tonga_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
PP_ASSERT_WITH_CODE((0 == tmp_result),
"SMC is still running!", return 0);
+ tmp_result = tonga_disable_thermal_auto_throttle(hwmgr);
+ PP_ASSERT_WITH_CODE((tmp_result == 0),
+ "Failed to disable thermal auto throttle!", result =
tmp_result);
+
tmp_result = tonga_stop_dpm(hwmgr);
PP_ASSERT_WITH_CODE((0 == tmp_result),
"Failed to stop DPM!", result = tmp_result);
--
1.9.1
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